class TestDetokenize(unittest.TestCase):
r"""Test Case for `lmp.tokenizer.CharListTokenizer.detokenize`."""
def setUp(self):
r"""Setup both cased and uncased tokenizer instances."""
self.cased_tokenizer = CharListTokenizer()
self.uncased_tokenizer = CharListTokenizer(is_uncased=True)
self.tokenizers = [self.cased_tokenizer, self.uncased_tokenizer]
def tearDown(self):
r"""Delete both cased and uncased tokenizer instances."""
del self.tokenizers
del self.cased_tokenizer
del self.uncased_tokenizer
gc.collect()
def test_signature(self):
r"""Ensure signature consistency."""
msg = 'Inconsistent method signature.'
self.assertEqual(
inspect.signature(CharListTokenizer.detokenize),
inspect.Signature(parameters=[
inspect.Parameter(name='self',
kind=inspect.Parameter.POSITIONAL_OR_KEYWORD,
default=inspect.Parameter.empty),
inspect.Parameter(name='tokens',
kind=inspect.Parameter.POSITIONAL_OR_KEYWORD,
annotation=Iterable[str],
default=inspect.Parameter.empty)
],
return_annotation=str),
msg=msg)
def test_invalid_input(self):
r"""Raise `TypeError` when input is invalid."""
msg1 = 'Must raise `TypeError` when input is invalid.'
msg2 = 'Inconsistent error message.'
examples = (
0,
1,
-1,
0.0,
1.0,
math.nan,
math.inf,
True,
False,
(1, 2, 3),
[1, 2, 3],
{1, 2, 3},
None,
)
for invalid_input in examples:
for tokenizer in self.tokenizers:
with self.assertRaises(TypeError, msg=msg1) as ctx_man:
tokenizer.detokenize(invalid_input)
self.assertEqual(
ctx_man.exception.args[0],
'`tokens` must be instance of `Iterable[str]`.',
msg=msg2)
def test_expected_return(self):
r"""Return expected strings."""
msg = 'Inconsistent detokenization result.'
examples = (([
'H', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd', '!'
], 'Hello world!'), ([], ''))
for tokens, ans_sequence in examples:
for tokenizer in self.tokenizers:
out_sequence = tokenizer.detokenize(tokens)
self.assertIsInstance(out_sequence, str, msg=msg)
self.assertEqual(out_sequence, ans_sequence, msg=msg)
def test_case_insensitive(self):
r"""Detokenize does not consider cases."""
msg = 'Inconsistent detokenization result.'
examples = (
['H', 'e', 'L', 'l', 'O', ' ', 'W', 'o', 'R', 'l', 'D', '!'],
['h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd', '!'],
)
for tokens in examples:
self.assertEqual(self.cased_tokenizer.detokenize(tokens),
self.uncased_tokenizer.detokenize(tokens),
msg=msg)
class TestDetokenize(unittest.TestCase):
r"""Test case for `lmp.tokenizer.CharListTokenizer.detokenize`."""
@classmethod
def setUpClass(cls):
cls.vocab_source = [
'Hello World!',
'I am a legend.',
]
@classmethod
def tearDownClass(cls):
del cls.vocab_source
gc.collect()
def setUp(self):
r"""Setup both cased and uncased tokenizer instances."""
self.cased_tokenizer = CharListTokenizer()
self.cased_tokenizer.build_vocab(self.__class__.vocab_source)
self.uncased_tokenizer = CharListTokenizer(is_uncased=True)
self.uncased_tokenizer.build_vocab(self.__class__.vocab_source)
self.tokenizers = [self.cased_tokenizer, self.uncased_tokenizer]
def tearDown(self):
r"""Delete both cased and uncased tokenizer instances."""
del self.tokenizers
del self.cased_tokenizer
del self.uncased_tokenizer
gc.collect()
def test_signature(self):
r"""Ensure signature consistency."""
msg = 'Inconsistent method signature.'
self.assertEqual(
inspect.signature(CharListTokenizer.detokenize),
inspect.Signature(parameters=[
inspect.Parameter(name='self',
kind=inspect.Parameter.POSITIONAL_OR_KEYWORD,
default=inspect.Parameter.empty),
inspect.Parameter(name='tokens',
kind=inspect.Parameter.POSITIONAL_OR_KEYWORD,
annotation=Iterable[str],
default=inspect.Parameter.empty)
],
return_annotation=str),
msg=msg)
def test_invalid_input_tokens(self):
r"""Raise `TypeError` when input `tokens` is invalid."""
msg1 = 'Must raise `TypeError` when input `tokens` is invalid.'
msg2 = 'Inconsistent error message.'
examples = (
False,
True,
0,
1,
-1,
0.0,
1.0,
math.nan,
-math.nan,
math.inf,
-math.inf,
0j,
1j,
object(),
lambda x: x,
type,
None,
NotImplemented,
...,
[False],
[True],
[0],
[1],
[-1],
[0.0],
[1.0],
[math.nan],
[-math.nan],
[math.inf],
[-math.inf],
[0j],
[1j],
[b''],
[()],
[[]],
[{}],
[set()],
[object()],
[lambda x: x],
[type],
[None],
[NotImplemented],
[...],
['', False],
['', True],
['', 0],
['', 1],
['', -1],
['', 0.0],
['', 1.0],
['', math.nan],
['', -math.nan],
['', math.inf],
['', -math.inf],
['', 0j],
['', 1j],
['', b''],
['', ()],
['', []],
['', {}],
['', set()],
['', object()],
['', lambda x: x],
['', type],
['', None],
['', NotImplemented],
['', ...],
)
for invalid_input in examples:
for tokenizer in self.tokenizers:
with self.assertRaises(TypeError, msg=msg1) as ctx_man:
tokenizer.detokenize(tokens=invalid_input)
self.assertEqual(
ctx_man.exception.args[0],
'`tokens` must be an instance of `Iterable[str]`.',
msg=msg2)
def test_return_type(self):
r"""Return `str`."""
msg = 'Must return `str`.'
examples = (
('H', 'e', 'L', 'l', 'O', ' ', 'W', 'o', 'R', 'l', 'd', '!'),
(''),
(),
)
for tokens in examples:
for tokenizer in self.tokenizers:
self.assertIsInstance(tokenizer.detokenize(tokens),
str,
msg=msg)
def test_normalize(self):
r"""Return sequence is normalized."""
msg = 'Return sequence must be normalized.'
examples = (
(
(
' ',
'H',
'e',
'L',
'l',
'O',
' ',
'W',
'o',
'R',
'l',
'D',
'!',
),
'HeLlO WoRlD!',
'hello world!',
),
(
(
'H',
'e',
'L',
'l',
'O',
' ',
'W',
'o',
'R',
'l',
'D',
'!',
' ',
),
'HeLlO WoRlD!',
'hello world!',
),
(
(
' ',
' ',
'H',
'e',
'L',
'l',
'O',
' ',
' ',
'W',
'o',
'R',
'l',
'D',
'!',
' ',
' ',
),
'HeLlO WoRlD!',
'hello world!',
),
(
('０'),
'0',
'0',
),
(
('é'),
unicodedata.normalize('NFKC', 'é'),
unicodedata.normalize('NFKC', 'é'),
),
(
('０', 'é'),
unicodedata.normalize('NFKC', '0é'),
unicodedata.normalize('NFKC', '0é'),
),
(
(),
'',
'',
),
)
for tokens, cased_sequence, uncased_sequence in examples:
self.assertEqual(self.cased_tokenizer.detokenize(tokens),
cased_sequence,
msg=msg)
self.assertEqual(self.uncased_tokenizer.detokenize(tokens),
uncased_sequence,
msg=msg)
